Question

write 5 points of difference between physical and chemical change​

Answer 1

Answer:

differences between chemical and physical change..

chemical change- irreversible change, change in its chemical properties, no change in state, change in colour

physical change- reversible change, changes in its physical properties, change happens in shape and size, change in state, no change in colour

Answer 2

Answer:

PHYSICAL CHANGE

change refers to a change in which the molecules are rearranged but their internal composition remains same.

Chemical Change is a process in which the substance transforms into a new substance, having different chemical composition.

Physical change Example Tearing of paper, melting/freezing of water, cutting of trees, etc.

Chemical change example Burning of wood/trees/paper, rusting of iron, setting of curd, etc.

Nature Reversible. Irreversible

Physical change Original matter Can be recovered Cannot be recovered

Involves Change in physical properties of the substance, i.e. shape, size, color etc.

Chemical change Change in chemical properties and composition of the substance.

Physical change Product Formation No new product is formed.

Chemical change New product is formed.

Physical change Energy Absorption and evolution of energy do not take place.

Chemical change Absorption and evolution of energy take place, during reaction.